ATMEGA328P-PU

Part: ATmega328P (ATMEGA328P-PU) — Atmel

Type: 8-bit AVR Microcontroller

Description: Low-power 8-bit AVR RISC microcontroller with 32 KB in-system self-programmable flash, 1 KB EEPROM and 2 KB SRAM, running at up to 16 MHz (16 MIPS) from 2.7–5.5 V.

Operating Conditions:

• Supply voltage: 2.7–5.5 V
• Operating temperature: -40 to +125 °C (automotive grade)
• Speed grade: 0–8 MHz at 2.7–5.5 V; 0–16 MHz at 4.5–5.5 V

Absolute Maximum Ratings:

• Max operating voltage: 6.0 V
• Voltage on any pin except RESET: -0.5 V to VCC + 0.5 V
• Voltage on RESET: -0.5 V to +13.0 V
• DC current per I/O pin: 40.0 mA
• DC current VCC and GND pins: 200.0 mA
• Injection current: ±5.0 mA at VCC = 0 V (max ±30 mA per port); ±1.0 mA at VCC = 5 V
• Operating temperature: -55 to +125 °C
• Storage temperature: -65 to +150 °C

Key Specs:

• CPU: 131 instructions, mostly single-cycle; 32 × 8 general purpose registers; on-chip 2-cycle multiplier
• Memory: 32 KB flash (10,000 write/erase cycles), 1 KB EEPROM (100,000 cycles), 2 KB SRAM
• I/O: 23 programmable I/O lines
• ADC: 10-bit, 8 channels in TQFP/QFN/MLF (6 channels in other packages)
• Timers: two 8-bit and one 16-bit Timer/Counter; six PWM channels; real-time counter with separate oscillator
• Active current: 1.5 mA at 3 V, 4 MHz
• Power-down current: 1 μA at 3 V
• Data retention: projected failure rate much less than 1 PPM over 20 years at 85 °C or 100 years at 25 °C

Features:

• Advanced RISC architecture, fully static operation
• Read-while-write self-programming flash with optional boot section and lock bits
• USART, SPI master/slave and byte-oriented 2-wire interface (I²C compatible)
• Programmable watchdog timer with separate on-chip oscillator
• On-chip analog comparator and temperature measurement
• Pin-change interrupt and wake-up
• Power-on reset and programmable brown-out detection
• Internal calibrated oscillator
• Six sleep modes: Idle, ADC noise reduction, power-save, power-down, standby, extended standby
• AEC-Q100 grade 1 qualified

Applications:

• Automotive and embedded control applications

Package:

• 32-lead TQFP
• 32-pad QFN/MLF

• High performance, low power AVR ® 8-bit microcontroller
• Advanced RISC architecture
• 131 powerful instructions - most single clock cycle execution
• 32 8 general purpose working registers
• Fully static operation
• Up to 16MIPS throughput at 16MHz
• On-chip 2-cycle multiplier
• High endurance non-volatile memory segments
• 32K bytes of in-system self-programmable flash program memory
• 1Kbytes EEPROM
• 2Kbytes internal SRAM
• Write/erase cycles: 10,000 flash/100,000 EEPROM
• Optional boot code section with independent lock bits
• In-system programming by on-chip boot program
• True read-while-write operation
• Programming lock for software security
• Peripheral features
• Two 8-bit Timer/Counters with separate prescaler and compare mode
• One 16-bit Timer/Counter with separate prescaler, compare mode, and capture mode
• Real time counter with separate oscillator
• Six PWM channels
• 8-channel 10-bit ADC in TQFP and QFN/MLF package
• Temperature measurement
• Programmable serial USART
• Master/slave SPI serial interface
• Byte-oriented 2-wire serial interface (Phillips I 2 C compatible)
• Programmable watchdog timer with separate on-chip oscillator
• On-chip analog comparator
• Interrupt and wake-up on pin change
• Special microcontroller features
• Power-on reset and programmable brown-out detection
• Internal calibrated oscillator
• External and internal interrupt sources
• Six sleep modes: Idle, ADC noise reduction, power-save, power-down, standby, and extended standby

Figure 1-1. Pinout

All DC/AC characteristics contained in this datasheet are based on characterization of Atmel ® ATmega328P AVR ® microcontroller manufactured in an automotive process technology.

Stresses beyond those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Note: 1. Maximum current per port = ±30mA